Объяснение:
y = √((x^2-1)/(x^2-3))
y^2 = (x^2-1)/(x^2-3)
y^2 = 1 + 2/(x^2-3)
x^2 - 3 = 2 / (y^2 - 1)
x^2 = 3 + 2/(y^2 - 1)
x = ±√(3 + 2/(y^2 - 1))
